Data General One

One of the first PC laptops

Resources
The Data General One was one of the first MS-DOS portables to hit the market. It has some built-in software, including a terminal emulator, no doubt used to connect to DG's mainframe computers.

The two serial ports are not PC compatible; the first is an RS-232C/RS-422 with modem lines, while the second is simply an RS-232C without modem lines. Both are driven by an 82C51.

The DG1 is not terribly heavy or bulky for its time. The screen is clear and easy to read. Overall, it's a pretty nice design.



All text and images are copyright © 1998-2002 Roger Sinasohn
Unauthorized use or duplication is strictly prohibited.
Data General One
Closed for travel

Data General One
Ready for work

Data General One
Detail of rear ports

Mfr: Data General
Location: Massachusets, USA
Model: 2217A
Processor: i80C88
Speed: 4mhz
Op. Sys: MS-DOS 2.1, CP/M-86
Bits:
Internal: 16
Data: 8
RAM:
Min: 128K
Max: 512K
ROM: 32K
Input: 79-key QWERTY keyboard
Display: CGA and MDA LCD (640x256) or EL
Storage:
Cassette:
Floppy Disk: 1 or 2 internal 3.5", external 5.25"
Hard Disk:
Ports:
Serial: 1 RS232C/RS-422, 1 RS-232C, both driven by 82C51
Parallel:
Keyboard:
Joystick:
Other: External Bus Adapter
Expansion:
Introduced: 1984
Discontinued:
Cost:
Physical:
Size: 11.25" x 13.5" x 3"
Weight: 4.1Kg
Power:
Voltage: +5.8vdc 30W
Connector:
Polarity:
Peripherals:
Notes:
Secondary serial port does not contain modem control lines, and neither port is PC Compatible.

Uncle Roger's Classic Computers
Computers - Wanted - Add Info - Conduct - Awards - Resources